The boat was rolling a little in the choppy sea.

The boat rolled and dipped in the sea, an uncertain motion.

Barney jerked the wheel back and forth, rolled the boat over on her side.

The boat rolled under his weight and threatened to capsize.

He settled behind the bicycle pedals as the boat rolled under his weight.

The boat rolled jerkily, as if impatient at the delay.

The boat heaved and rolled but continued on its steady course.

Just before the boat rolled I had been devising a way to get some matches ashore.

The boat rolled sharply, throwing the 11 men on the bridge into the water.

"I thought the boat would roll right over and go down."